[INFO] fetching crate ari 0.0.5...
[INFO] documenting ari-0.0.5 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate ari 0.0.5 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ari 0.0.5 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ari 0.0.5
[INFO] finished tweaking crates.io crate ari 0.0.5
[INFO] tweaked toml for crates.io crate ari 0.0.5 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 915a59fc403b5332e4ee191a019144b6672a616c0a87b8f43494eaf2d5c92a6e
[INFO] running `Command { std: "docker" "start" "-a" "915a59fc403b5332e4ee191a019144b6672a616c0a87b8f43494eaf2d5c92a6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "915a59fc403b5332e4ee191a019144b6672a616c0a87b8f43494eaf2d5c92a6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "915a59fc403b5332e4ee191a019144b6672a616c0a87b8f43494eaf2d5c92a6e", kill_on_drop: false }`
[INFO] [stdout] 915a59fc403b5332e4ee191a019144b6672a616c0a87b8f43494eaf2d5c92a6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a059bd1e8f3ff342f05c64db364cffaa6bdd1624e2fa71fbf6763e49fa572f9a
[INFO] running `Command { std: "docker" "start" "-a" "a059bd1e8f3ff342f05c64db364cffaa6bdd1624e2fa71fbf6763e49fa572f9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling ari v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ring v0.16.20
[INFO] [stderr]  Documenting ari v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     const_fn,
[INFO] [stdout]   |     ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![feature(
[INFO] [stdout] 2 | |     box_syntax,
[INFO] [stdout] 3 | |     const_fn,
[INFO] [stdout] 4 | |     crate_visibility_modifier,
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     stmt_expr_attributes
[INFO] [stdout] 9 | | )]
[INFO] [stdout]   | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `ari`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name ari src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-d38c567ce4ccc50e.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-19eddd40197aec2d.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-07537f67e3fa3d99.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-439732ba5f207e6a.rmeta --extern ring=/opt/rustwide/target/debug/deps/libring-1cc90445afdb70db.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-c081668b317203dd.rmeta --extern winapi=/opt/rustwide/target/debug/deps/libwinapi-a434c70853aca3e3.rmeta --cap-lints=warn --crate-version 0.0.5 --cfg debug` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "a059bd1e8f3ff342f05c64db364cffaa6bdd1624e2fa71fbf6763e49fa572f9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a059bd1e8f3ff342f05c64db364cffaa6bdd1624e2fa71fbf6763e49fa572f9a", kill_on_drop: false }`
[INFO] [stdout] a059bd1e8f3ff342f05c64db364cffaa6bdd1624e2fa71fbf6763e49fa572f9a
